The Interplay Between Innate-Like B Cells and Other Cell Types in Autoimmunity

Area of Science:

• Immunology
• Cell Biology

Background:

• The innate immune system is vital for initial protection and self-tolerance.
• B cells possess both adaptive and innate immune functions, with subsets implicated in autoimmune diseases.

Purpose of the Study:

• To summarize the functions of recently identified B cell populations with innate-like roles.
• To highlight the significance of interactions between innate-like B cells and other immune system components in autoimmune and inflammatory diseases.

Main Methods:

• Review of existing literature on B cell subsets with innate-like functions.
• Analysis of cross-talk between innate-like B cells and other immune cells in disease models.

Main Results:

• Several B cell subsets, beyond B-1a and marginal zone B cells, exhibit innate-like functions.
• These subsets include innate response activator B cells, T-bet positive B cells, natural killer-like B cells, IL-17-producing B cells, and human V H 4-34-expressing B cells.

Conclusions:

• Innate-like B cells are crucial players in immune responses and autoimmune diseases.
• Targeting specific innate-like B cell subsets could be a promising therapeutic strategy for resolving inflammation in autoimmune and inflammatory conditions.